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(ModeL) H. M. KITOHELL.

DIE FOR EMBOSSING PAPER AND-LIKE IMPRBSSIBLE MATERIALS. No. 440,166. Patented Nov. 11, 1890.

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UNITED STATES ATENT OFFICE.

HUDSON M. KITOHELL, OF BROOKLYN, NEIV YORK.

DIE FOR EMBOSSING PAPER AND LIKE IMPRESSIBLE MATERIALS.

SPECIFICATION forming part of Letters Patent NO. 440,166, dated November 11 1890.

Application filed April 12, 1890- Serial No. 347,733. (ModeL) To all whom it may concern:

Be it known that I, HUDSON M. KITCHELL, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented and made certain Improvements in Dies for Embossing Paper and Like lmpressible Materials; and I hereby declare that the following specification is a full, clear, and exact description and explanation of the same, so that those skilled in the art of embossing impressible materials may understand and use the same, reference being had to the accompanying, drawing in Which- A is the die.

B is the cardboard.

O is the plastic composition.

I am aware that paper and other materials of like impressionable character have hereto fore been embossed by means of dies with various raised or depressed designs, such dies having been made from some metal with the designs engraved in it or electrotyped upon it.

I am also aware that molds have been made of soft plastic materials and compositions of. materials for molding metals; but I am not aware that previous to my discovery and invention thereof dies'have ever been made of soft plastic material with a hard flat flexible back, and while the engraved surface is soft designs can be cut or engraved in it, and then hardened to such a point that the material from which the dies are made will be both hard to resist abrasion and tough enough to resist cracking while being passed between rolls in embossing pliable materials.-

The ingredients composing the plastic compound are as follows: glue, molasses, water, and plaster-of-paris in the following proportions: dissolved glue, one pound; Water, one gallon; molasses, one pint; plaster-of-paris, twenty pounds. These ingredients are then placed in a receptacle and thoroughly mixed together. It then becomes a thick sticky mass that can be easily worked.

The modus opcrcmdi employed in making the die A is as follows: The composition after being mixed is poured on a large sheet of hard flat flexible material-such as cardboard Band Worked over the surface of the card-board with the hands or a brush until it is perfectly smooth and of an even thickness all over the surface. The design is then engraved in the plastic composition 0 while it is still in a wet state. The implements used in engraving the designs are small pieces of wood with their points sharpened to various thicknesses. The die is then allowed to dry, and when thoroughly dry is ready for use.

What I claim, and desire to secure by Letters Patent, is

The herein-described hard fiat flexible die, the body of which is a hard flat flexible material, such as cardboard, and the engraved surface of which is formed of a hardened plastic material, whereby it may be passed between rolls without cracking, substantially as set. forth.

HUDSON M. KITOHELL.

Witnesses:

JAMES M. HICKS, W. L. BENNEM. 

